"Lupin III: Stolen Lupin" is a direct-to-video anime special that centers on the iconic thief Arsène Lupin III and his team as they navigate a high-stakes heist intertwined with personal stakes. The narrative begins with Lupin being framed for the theft of a priceless artifact known as the "Dark Cleopatra," a legendary gem said to hold immense power. The theft is orchestrated by a mysterious figure named Michael, who bears a striking resemblance to Lupin and possesses an uncanny ability to mimic his skills and mannerisms. This doppelgänger not only tarnishes Lupin's reputation but also puts him in the crosshairs of law enforcement and rival criminals.

As Lupin investigates, he discovers that Michael is part of a larger conspiracy involving a secret organization aiming to use the Dark Cleopatra for nefarious purposes. The artifact is revealed to be a key component in a plan to manipulate global power structures. Lupin, alongside his loyal companions Daisuke Jigen, Goemon Ishikawa, and Fujiko Mine, must outwit both the organization and the authorities to clear his name and prevent the gem from falling into the wrong hands. The story is driven by a series of elaborate heists, double-crosses, and narrow escapes, showcasing Lupin's trademark wit, resourcefulness, and flair for the dramatic.

The dynamic between the characters remains a central focus, with Jigen providing his sharpshooting expertise, Goemon wielding his legendary sword, and Fujiko oscillating between ally and wildcard. Inspector Zenigata, Lupin's perennial pursuer, also plays a significant role, torn between his duty to apprehend Lupin and his growing suspicion that the thief may be innocent of this particular crime. The narrative builds to a climactic confrontation where Lupin must face off against Michael in a battle of wits and skill, ultimately revealing the true motives behind the conspiracy and the personal stakes involved.

The special maintains the series' signature blend of action, humor, and intrigue, with a plot that balances high-stakes drama with the lighthearted camaraderie of its core cast. The story explores themes of identity, trust, and the blurred lines between hero and villain, all while delivering the fast-paced, entertaining escapades that define the Lupin III franchise.